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No. 620,8el.

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LOOM.

(Application med .my 1s, 189s.)

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Patented Mar. 7, |899. W. WATTIE.

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(Application filed July 18, 1898.) (no Model.) 4 sheets-sheet 2.

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LOOM.

(Application led July 18, 1898.)

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W. WATTIE.

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(Application filed July 18, 1898.) (No Model.) 4 Sheeis-Sheet 4.

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@www 1/ n m, fm1/Mw@ lJW/f e. m @95W e UNITED STATES PATENT OFFICE.

VILLIAM VATTIE, OF WORCESTER, MASSACHUSETTS, ASSIGNOR TO THE CROMPTON dav KNOWLES LOOM WORKS, OF SAME PLACE.

LOOM.

SPECIFICATION forming part of Letters Patent No. 620,861, dated. March 7, 1899.

Application filed .Tuly 18, 1898. Serial No. 686,262. (No model.)V

To all whom it may concern..-

Be it known that I, WILLIAM WATTIE, a citizen of the United States, residing at Worcester, inthe county of Vorcester and State of Massachusetts, have invented certain new and useful Improvements in Looms, of which the following is a specification.

My invention relates to looms, and particularly to that class of looms provided with` what is termed a dobby mechanisni,`the pattern-surface of which controls the movement of the harnesses.

The object of my invention is to do away with the long pattern-chains usually employed to weave a certain class of fabrics, as towels, with a plainbody and headings, and to use a short dobbypattern-chain, which is moved in one direction or the other alternately, so that a chain with a small number of bars will weave the patterndesired.

My invention consists in certain novel features of construction of my improvements, and more particularly in combining with the ordinary dobby mechanism supplemental mechanism automatically operated from the drop-box pattern-chain to cause the dobby pattern-chain to move in one direction or the other, as desired, and for the lengt-h of time desired, according to the pattern to be woven, as will be hereinafter fully described.

I have shown in the drawings in connection with my improvements a portion of a dropboX pattern mechanism of a loom and of a multiplier pattern-chain which is of the ordinary and well-known construction and oph eration and fully shown and described in United States Letters Patent No. 413,369, of October 22, 1889. I have also shown in the drawings a portion of a dobby pattern-chain mechanism in connection with my improvements which may be of any ordinary and well-known construction and of the construction set out in Letters Patent No. 582,924, of

May 18, 1897.

Referring to the drawings, Figure 1 shows a plan view of portions of a drop-box pattern mechanism of the description set out in said Patent No. 413,369 and a portion of the pattern-cylinder and its driving mechanism of a double-index dobby mechanism shown in said 2 is a side view of some of the parts shown in Fig. 1, looking in the direction of arrow d, same figure. Several of the parts shown in Fig. 1 are not shown in Fig. 2 for the sake of clearness. Fig. 3 is,'on an enlarged scale, a horizontal section through the reverse-gears shown at the lower right-hand corner of Fig.

chain cylinder of the Knowles' loom lis sub-V stituted for the dobby pattern-chain cylinder. In the accompanying drawings, 1 is the vdobby-frame, supported on the upper end of the loom side or frame, (not shown,) and 2 is the shaft of the dobby pattern-cylinder-3. The dobby pattern-cylinder 3 may be of ordinary construction and is provided with a series of. longitudinal grooves or recesses 4, in which extend the bars 5 of the pattern= chain in the ordinary way. Only one pattern-chain bar 5 is shown in Fig. 1.

Patent No. 582,924 combined therewith. Fig.

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' The pattern-chain 5 is provided with two rows of-holes 6, arranged alternately to receive the pattern-pins, which act on the indicator-levers (not shown) of the dobby'in the usual and well-known way and control the movement of the harness-frames.

- The end of the dobby-pattern-cylinder shaft 2 has a worm-gear 7 loose thereon, which is held to turn with the shaft 2 by a spring-actuated clutch device 8 of ordinaryand wellknown construction, consisting of a springactuated arm or dog 8', pivoted at one end on a plate 8, the hub 8 of which is fast on the l shaft 2. A coiled spring 9, bearing at one end against a collar 10, fast on the end of the shaft 2, .and at its other end against the arm or dog 8', acts to keep said dogvS' in engagement with the lugs 7' on the worm-gear 7, so that the revolution of the gear 7 will revolve the shaft 2 of the pattern-cylinder 3. The

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said worm-gear 7, all in the usual and well-l known way.

Secured to the dobby-frame 1 are the three arms or brackets 11 11 11", which in this instance support the d rop-box pattern mechanism and also the shafts carrying the system of gears. The driving-shaft l2 extends only between the frames 11 and 11 and is about half the length of the two other shafts. (See Fig. 1, dotted lines.) Said shaft 12 has a gear 13 loose thereon, but which may be clutched thereto by any ordinary clutch mechanism. (Not shown.) Said gear 13 isdriven by a system of gears on some driven part of the loom. (Not shown.)

The shaft 12 has a gear 14 thereon which meshes with a gear 15, fast on a shaft 16, and drives said shaft 16. The gear 15 also meshes with a gear 17, fast on the shaft 13 of the drop-box pattern mechanism, and drives said shaft 1S.

On the shaft 16 is fast a gear 19, which meshes with a gear 20, loose on a stud 2l. The gear 2O meshes with a gear 22, loose on a shaft 23, which is in alinement with the shaft 12. (See Fig. 1.) The `gear 22 has two pins 24 on opposite sides thereof, (see Fig. 1,) which are adapted to be engaged by the projeeting end 25 of the sliding key 25 to cause the shaft 23 to turn with the gear 22 when desired. The sliding key 25 (see Figs. 3 and 4) extends and is adapted to have a longitudinal motion iu a slot 26 in the shaft 23 and to turn with said shaft. A collar27, secured on the end of the shaft 23 by a set-screw 23, holds the sliding key 25 in the slot 26 in said shaft. On the outer end of the sliding key 25 is secured a grooved pulley 29, into which extends the yoked end of an arm 30, secured on the end of the longitudinal sliding shaft 31, (see Fig. 2,) which is caused to have a sliding motion in a manner to be hereinafter described.

On the collar 27 in the end of the shaft 23 is loosely mounted a gear 32, which is provided with a set-screw 33, the inner end of which extends in an annular groove 27 in the collar 27 to hold the gear 32 in proper position thereon.

The gear 32 is provided with two pins 34, on opposite sides thereof, which are adapted to be engaged by the projecting end 25' of the sliding key 25 to cause the shaft 23 to turn with the gear 32. With the gear 32 a gear 35, fast on the shaft 16, meshes.

On the shaft 23 is fast a worm 36, which extends below and engages and turns the wormgear 7 on the shaft 2 of the pattern-cylinder 3, above described. The worm 36 has a dwell of one-half a revolution, at which time the sliding key 25 is given its longitudinal motion; but the worm 36 having a whole revolution each pick, the worm-gear 7 and dobby patterncylinder 3 are made to turn every pick of the loom with the other half of the worm. By operating the two-weave device described in United States Patent No. 582,924 the :indication may be taken from either row in bar 5 to make the pattern perfect on the goods. In some weaves the pegging of bar 5 used in going forward would not indicate right on the reverse of the chain, in which case the second row of holes would be used in bar 5, as will be understood by those skilled in the art, it being understood that one row of holes only may be used in bar 5 or a bar with a single row may be used, as desired.

From the above description it will be seen that by means of the system of gears connected with the shafts 12, 16, and n3, according to the engagement of the sliding key 25 with the gear 22 or the gear 32, the shaft 23 is rotated with the worm 36 to rotate the pattern-cylinder 3 in one direction or the other.

The automatic movement of the reverse-key 25 through sliding rod 31 is controlled and regulated by an additional finger or lever 33 over the drop-box pattern-chain cylinder 44.

' A link 39 connects the outer end of the lever 38 with an angle-lever 40, pivoted at 41. The opposite end of the angle-lever 40 engages with a collar 42 on the sliding rod 31, which is supported in suitable bearings. A spring 43, secured to a projection 40 on the anglelever 40 below its pivot-point 41, acts to draw the sliding rod 31 to the left, Fig. 2, and the reversing-key 25 into engagement with the pins 24 on the gear 22, as shown in Fig. 4. Vith the key 25 in this position the dobby pattern-cylinder 3 will continue to revolve in one direction; but when a roll on the boxpattern chain comes under the lever 33 said lever is raised, and through the connector 39, angle-lever 40, sliding rod 31, and arm 30 the key 25 is moved outwardly into the position shown in Fig. 3 to engage with the pins on the gear 32 and cause said gear to revolve with said shaft 23, leaving the gear 22 loose on said shaft. The shaft 23 will then be revolved in an opposite direction through the gear 35, fast on the end of the shaft 16, and likewise the dobby pattern-chain cylinder 3 will be revolved in the opposite direction.

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As long as a roll remains under the lever 3S the dobby pattern-chain cylinder 3 will continue to revolve in the same direction. )Vhcn a roll does not come under the lever 33, said lever will drop and the spring 43 will act to move the sliding rod 31 and through connections the key 25 to engage with the pins 24 on the gear 22 and cause the dobby pattern` chain cylinder 3 to turn in the opposite direction. Thus the dobby pattern-chain is alternated or turned forward or backward automatically, as desired, and for the length of the pattern desired.

The drop-box pattern-chain mechanism and the auxiliary or multiplier pattern chain mechanism (shown inFig. 1 of the drawings at the left) are of the ordinary and well-known construction and operation and fully shown and described in United States Patent No. 413,369, of October 22, 1889, above referred to, and therefore does not need to be described herein.

I have shown in Fig. 7 my improvements combined with the ordinary harness patternchain cylinder of the Knowles loom shown and described in Letters Patent of the United States No. 134,992, of January 21, 1873, instead of With the dobby pattern-chain cylinder shown in Fig. 1. In said Fig. 7 the multiplier pattern-chain cylinder A and the box pattern-chain cylinder B and their operating parts correspond With the multiplier pattern-chain cylinder and the box patternchain cylinder and their operating parts, as shown at the left in Fig. 1. The additional finger or lever 38'-, Fig. 7, corresponds with the finger or lever 38 (shown in Fig. 1 and above described) and operates through the same connections the reverse-key 25, Fig. 7.

The harness pattern-chain cylinder 45, Fig. 7, is fast on the same shaft that the box Apattern-chain cylinder B is mounted on and in which the reverse-key 25 is supported and slides. y

Motion is communicated to the harness pattern-chain cylinder 45 to turn it in one direction or the other, as desired, by the gears 47 and 48, which are loosely mounted on the shaft of the harness pattern-chain cylinder 45 and are positively driven in opposite directions, as indicated by arrows,` Fig. 7, bya series of gears (not shown) from some driven part of the loom. y

The sliding key 25, provided with the projecting end 25', is operated by lever 38, accordin g to Whether a roll or tube comes under said lever, through connections shown in Fig. 2 and above described to engage the pins 47 on the gear 47 to cause the shaft on which said gear is loosely mounted and the harness pattern-chain cylinder '45 to revolve in one direction With said gear or to engage the pins 48' on the gear 48 to cause the shaft on which said gear 48 is loosely mounted and the harness pattern-chain cylinder 45 to revolve in the opposite direction, and thus the'revolution of the harness pattern-chain cylinder 45 in one direction or the other to operate the harness-levers and harnesses to Weave the fabric is controlled. l It Will be understood that the details of construction of some of the parts of myimprovements may be varied,if desired. For instance, instead of using a sliding reverse-key in connection with the reverse-gears some other Well-known form of clutch mechanism may be substituted.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is v 1.l In aloom of the class described, the combination With the dobby pattern-chain cylinder, and means for operating the same, and the box pattern-chain cylinder, and means for operating the same, of a supplemental lever operated by the box pattern-chain, connections from said lever to a sliding key or clutch, and said key or clutch, which automatically engages either one of tWo gears and said gears loose on the shaft which operates the shaft of the dobby pattern-chain cylinder, to cause said shaft to revolve in one direction or the other, and move forward or backward-the dobby pattern-chain alternately as desired, substantially as shown and described.

2. In a loom, the combination VWith the harness pattern-chain cylinder, and the box pattern-chain cylinder, of a supplemental lever operated by the box pattern-chain, connections from said lever to a sliding key or clutch and said key or clutch, which automatically engages either one of two gears land said gears loose on the shaft on which the harness pattern-chain cylinder is fast, to cause said harness pattern-chain cylinder to revolve in one direction or the other, and move'forward or back the harness pattern-chain alternately as desired, substantially as shown and described.

WILLIAM WATTIE.

Witnesses:

J. C. DEWEY, M. J. GALvIN. 

